GD&T Inspection in SpatialAnalyzer

Jeremy WinnApplication Engineer

New River Kinematics

Philip WilsonApplication Engineer

New River Kinematics

GD&T Inspection

Incorporating

Standardized Inspection within SpatialAnalyzer

GD&T Inspection

GD&T “Regular Inspection” Alignments Datum Structure Current Position

Check Specific

Computation Bounding Tol. Zone RMS (root mean square)

Outlier Pts = Part Error User controls rejection rules

Goals: Pass/Fail at Tolerance Is the part good and if not..,

how do I fix it?

GD&T Inspection

1. Defining the Checks

Building Annotations • Tolerance Structure• Nominal designation

GD&T Inspection can be Divided into 2 Distinct Steps

1. Measurement ProcessData Gathering & Association

• Inspection/ inspect scripting• Toolkit or direction Association • or Measurement Plan (MP)

GD&T and CAD Import

GD&T Annotations

GD&T Annotations

• SA Objects/CAD Face

• Datum Assignment

• Tolerance Definition

GD&T Annotations

Datum Annotations:

• SA Objects/CAD Face

Building Annotations

GD&T Annotations

• Annotation View Orientation:

• CAD Faces vs. SA Objects SA Objects (Fit to Points)

GD&T Annotations

Datum and Datum Target Designations• (Hold down A-Z to pick a letter)• Click-point defines leader line anchor point

GD&T Annotations

Feature Checks Designation:

GD&T Annotations

– Form Checks• Datum Independent

– Orientation Checks• Depend on 1 Datum

– Location Checks• Can Include 1-3 Datums • Can Include 1-2 Tiers

Feature Checks Designation:

GD&T Annotations

• Required for Material Modifiers– MMC, LMC

• Dimensional Tolerances– Datum Independent

Building Annotations Demo

GD&T Inspection

1. Defining the Checks

Building Annotations • Tolerance Structure• Nominal designation

GD&T Inspection can be Divided into 2 Distinct Steps

1. Measurement ProcessData Gathering & Association

• Inspection/ inspect scripting• Toolkit or direction Association • or Measurement Plan (MP)

Building Feature Checks

• Tree Structure– Annotations

• Tolerance & check definition

– Datums & Feature Checks1. Link points to annotations

2. Point offset & evaluation control

3. Contain guided inspection controls

Building Feature Checks

GD&T Inspection

Direct Point Association

GD&T Inspection

Guided Inspection• Design• Rehearse• Inspect

Demo- Basic Fit & Link

Check Details

Feature Checks come in 3 Categories:

– Orientation Checks

– Location Checks

– Form Checks

Flatness

Flatness Evaluation Process within SA:1. Two parallel planes are built bounding the

extents of the data.2. These planes are allowed to freely rotate to

establish the minimum distance between them while still containing the data.

Flatness

Standard Inspection (RMS):

Flatness

Flatness Evaluation Process within SA:1. Two parallel planes are built bounding the

extents of the data.2. These planes are allowed to freely rotate to

establish the minimum distance between them while still containing the data.

Cylindricty

Cylindricity Evaluation Process within SA:1. Two coaxial cylinders are built bounding the

extents of the data.2. The cylinders are allowed to freely rotate to

establish the minimum distance between them while still containing the data.

Orientation Checks

Datum

Nominal Angle

Deviation = Distance btw Planes

Surface Profile

Surface Profile Evaluation Process within SA:

1. An inner and outer tolerance boundary is established2. The profile is allowed to rotate based on the datum

constraints to minimize the deviations3. The extent of the max and min deviation is used to

establish the measured profile deviation

GD&T Annotations

Feature Checks Categories:

Cross SectionChecks

GD&T Annotations

Cross Section Checks:

RunoutCross Section

Check

Total RunoutSurface Check

Concentricity

Cross Section Checks:

ConcentricityCross Section

Check

GD&T Annotations

Cross SectionChecks

Datum Alignment

Right- Click Datum Category• Select “Align”

Building Feature Checks

• Cylinder Evaluation Method• Probe Compensation

Datums and Degrees of Freedom• Geometry Type is the Key

Datum Alignment

The number of datums specified and the feature type selected controls the degrees of freedom for the check:

Datum Alignment

• SA Objects/CAD Face• SA Offset object

Demo- Basic Fit & Link

Building Feature Checks

Inspection Controls

Evaluation Method

Building Feature Checks

• Cylinder Evaluation Method

Building Feature Checks

• Cylinder Evaluation Method

Building Feature Checks

• Cylinder Evaluation Method

Building Feature Checks

• Cylinder Evaluation Method

Composite True Position

Composite Checks:

Automatic Point Association

GD&T Inspection

• Proximity Filter

• Based on Initial Alignment

Automatic Point Association

GD&T Inspection

Automatic Point Association

GD&T Inspection

Reporting

Reporting

Summary Table• Fit Transform• Datum Statistics

Details Table• Point Deviations

Reporting

Vectors for Visualization:• Specific Alignment• DoF Understanding

Reporting

Reporting

Evaluations Tools

Thank You